Sei ma graphite electrode achigona kumira nepamusoro-tembiricha nharaunda?

Sei ma graphite electrode achigona kumira nepamusoro-tembiricha nharaunda?

Graphite electrode inoita basa rakakosha muindasitiri yemazuva ano, kunyanya mumashandisirwo ari munzvimbo dzine tembiricha yepamusoro, senge magetsi arc furnace steelmaking, aluminium electrolysis, uye electrochemical processing. Chikonzero nei ma graphite electrode achikwanisa kumirisana nepamusoro-tembiricha nharaunda zvinonyanya kukonzerwa nekusarudzika kwavo kwemuviri nemakemikari zvinhu. Ichi chinyorwa chichaongorora zvakadzama kushanda kwakanakisa kwemagraphite electrodes munzvimbo dzepamusoro-tembiricha kubva kune zvinhu zvakaita sechimiro, hunhu hwekupisa, kugadzikana kwemakemikari, uye mechanical simba regraphite.

1. Mamiriro ezvinhu egraphite

Graphite chinhu chine layered chimiro chinoumbwa nekabhoni maatomu. Muchimiro chekristaro chegraphite, maatomu ekabhoni akarongwa mune hexagonal planar layer. Maatomu ekabhoni mukati mechikamu chega chega anobatanidzwa neakasimba covalent zvisungo, nepo maseru anodyidzana neimwe neimwe kuburikidza neasina kusimba van der Waals masimba. Ichi chivakwa chakaturikidzana chinopa graphite ine yakasarudzika yemuviri uye makemikari zvimiro.

Yakasimba covalent zvisungo mukati mezvikamu: Iyo covalent zvisungo pakati pekabhoni maatomu mukati mezvikamu zvakasimba zvakanyanya, zvichiita kuti graphite ichengetedze kugadzikana kwechimiro kunyangwe pakupisa kwakanyanya.

Weak van der Waals anomanikidza pakati pema layers: Kudyidzana pakati pema layers kunenge kushoma, izvo zvinoita kuti graphite iite interlayer sliding kana ichiiswa kunze kwemasimba. Hunhu uhu hunopa graphite ine yakanakisa lubricity uye processability.

2. Thermal properties

Kuita kwakanakisa kwemagraphite electrode munzvimbo dzekudziya kwepamusoro kunonyanya kuverengerwa kune yavo yakatanhamara yekupisa.

High melting point: Graphite ine nzvimbo yakanyanyisa kunyungudika, ingangoita 3,652 °C, iyo yakakwira zvakanyanya kudarika yesimbi zhinji nealloys. Izvi zvinoita kuti graphite irambe yakasimba pakupisa kwepamusoro pasina kunyunguduka kana kukanganisa.

High thermal conductivity: Graphite ine yakanyanya kupisa conductivity, iyo inogona kukurumidza kuitisa uye kuparadzira kupisa, kudzivirira kupisa kwenzvimbo. Chimiro ichi chinoita kuti graphite electrode igovere kupisa zvakaenzana munzvimbo dzepamusoro-tembiricha, kuderedza kushushikana kwekupisa uye kuwedzera hupenyu hwebasa.

Low coefficient of thermal expansion: Graphite ine yakaderera coefficient of thermal kuwedzera, izvo zvinoreva kuti vhoriyamu yayo inochinja zvishoma pakupisa kwakanyanya. Ichi chimiro chinogonesa magirafu emagetsi kuchengetedza dimensional kugadzikana munzvimbo dzepamusoro-tembiricha, kuderedza kushushikana kwekuputika uye deformation inokonzerwa nekuwedzera kwekupisa.

3. Kugadzikana kwemakemikari

Kugadzikana kwemakemikari emagraphite electrodes munzvimbo dzepamusoro-tembiricha zvakare chimwe chezvinhu zvakakosha kuti vakwanise kutsungirira kupisa kwakanyanya.

Oxidation resistance: Pakupisa kwepamusoro, chiyero che graphite neokisijeni chinononoka, kunyanya mumagasi anert kana kuderedza mhepo, apo chiyero che oxidation ye graphite inotodzika. Uku kupikisa oxidation kunoita kuti ma graphite electrodes ashandiswe kwenguva yakareba munzvimbo dzinopisa zvakanyanya pasina kuve ne oxidized uye kupera simba.

Corrosion resistance: Graphite ine good corrosion resistance kune akawanda acids, alkalis nesalts, izvo zvinoita kuti magraphite electrodes arambe akatsiga munzvimbo dzepamusoro-tembiricha uye dzinoora. Semuenzaniso, panguva ye electrolytic process yealuminium, ma graphite electrode anogona kumira nekuora kweakanyungudutswa aruminiyamu uye fluoride munyu.

4. Mechanical simba

Kunyangwe iyo interlaminar kupindirana kwegraphite ishoma, iyo yakasimba covalent zvisungo mukati meiyo intramellar dhizaini inopa graphite ine yakakwirira mechanical simba.

Yakakwira yekumanikidza simba: Graphite electrode inogona kuchengetedza yakawedzera kumanikidza simba kunyangwe patembiricha yakakwira, inokwanisa kumirisana nekumanikidza kwakanyanya uye kukanganisa mitoro mumavira emagetsi arc.

Yakanakisa kupisa kwekushisa kwekudzivirira: Iyo yakaderera coefficient yekuwedzera kwemafuta uye yakakwira yekupisa conductivity yegraphite inoiisa iyo yakanakisa yekupisa kuvhundutsa kuramba, ichiigonesa kuchengetedza kuvimbika kwechimiro panguva yekukurumidza kupisa uye kutonhora maitiro uye kuderedza kuputika uye kukuvara kunokonzerwa nekupisa kwekushushikana.

5. Zvinhu zvemagetsi

Kuitwa kwemagetsi kwegraphite electrodes munzvimbo dzepamusoro-tembiricha zvakare chikonzero chakakosha chekushandisa kwavo kwakakura.

High magetsi conductivity: Graphite ine yakanakisa magetsi conductivity, iyo inogona zvinobudirira kuitisa ikozvino uye kuderedza kurasikirwa kwesimba. Hunhu uhwu hunogonesa magraphite electrodes kutamisa simba remagetsi zvakanaka mumagetsi arc furnaces uye electrolysis process.

Low resistivity: Iyo yakaderera resistivity yegraphite inoigonesa kuchengetedza yakaderera kushomeka pakupisa kwakanyanya, kuderedza kupisa chizvarwa uye kurasikirwa kwesimba, uye kuvandudza simba rekushandisa.

6. Kugadzirisa kushanda

Iko kugadzirisa kushanda kwegraphite electrodes zvakare chinhu chakakosha chekushandisa kwavo munzvimbo dzepamusoro-tembiricha.

Easy processability: Graphite ine yakanakisa processability uye inogona kugadziriswa kuita maelectrodes emhando dzakasiyana uye saizi kuburikidza nemakanika kugadzirisa, kutendeuka, kugaya uye mamwe matekiniki ekusangana nezvinodiwa zveakasiyana mashandisirwo mamiriro.

Kuchena kwepamusoro: High-purity graphite electrodes ine kugadzikana kwakanaka uye kushanda munzvimbo dzepamusoro-soro, iyo inogona kuderedza kushandiswa kwemakemikari uye kukanganisa kwemaitiro kunokonzerwa nekusvibiswa.

7. Mienzaniso Yekushandisa

Graphite electrodes anoshandiswa zvakanyanya munzvimbo dzakawanda dzepamusoro-tembiricha maindasitiri. Iyi inotevera mimwe mienzaniso yakajairika yekushandisa:

Electric arc furnace steelmaking: Mumagetsi arc furnace steelmaking process, graphite electrodes, sezvinhu zvinofambisa, inogona kumira kutonhora kusvika 3000 ° C, ichishandura simba remagetsi kuita simba rinopisa kuti rinyungudutse simbi yakaraswa nesimbi yenguruve.

Electrolytic aluminiyamu: Panguva ye electrolytic aluminium process, graphite electrode inoshanda seanode, inokwanisa kushingirira tembiricha yepamusoro uye kuora kweakanyungudutswa aruminiyamu uye fluoride munyu, ichiita zvazvino, uye kusimudzira kugadzirwa kwealuminum.

Electrochemical machining: Mumagetsi emagetsi emagetsi, magirafu emagetsi, semagetsi echishandiso, anogona kushanda zvakatsiga munzvimbo dzinopisa uye dzinoparadza, achiwana kugadzirwa kwepamusoro-soro nekuumba.

Mhedziso

Mukupedzisa, chikonzero nei ma graphite electrode achikwanisa kumirisana nepamusoro-tembiricha nharaunda kunyanya ari mune yakasarudzika dhizaini chimiro, yakanakisa yekupisa zvimiro, kugadzikana kwemakemikari, simba remagetsi, zvivakwa zvemagetsi uye mashandiro ekugadzirisa. Aya maitiro anogonesa magraphite electrodes kuti arambe akagadzikana uye achishanda munzvimbo dzepamusoro-tembiricha uye dzinoparadza, uye anoshandiswa zvakanyanya muminda yakadai seyemagetsi arc furnace steelmaking, electrolytic aluminium, uye electrochemical processing. Nekuenderera mberi kwekuvandudza tekinoroji yeindasitiri, mashandiro uye chiyero chekushandisa chegraphite electrode chichawedzerwa, ichipa mamwe akavimbika uye anoshanda mhinduro kumaindasitiri ekupisa kwepamusoro.